File: dynamic_cast.sil

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// RUN: %target-swift-frontend -emit-ir %s | %FileCheck %s -DINT=i%target-ptrsize

// REQUIRES: CPU=i386 || CPU=x86_64

// We have to claim this is raw SIL because there are critical edges from non
// cond_br instructions.
sil_stage raw

import Builtin
import Swift

protocol P {
  func f() -> Self
}

struct S {
  var v: Int
}

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @testUnconditional0(
sil @testUnconditional0 : $@convention(thin) (@in P) -> () {
bb0(%0 : $*P):
  // CHECK: [[T0:%.*]] = alloca [[S:%.*]], align
  // CHECK: [[T4:%.*]] = call {{.*}}@"$s12dynamic_cast1P_pMD"
  // CHECK: call zeroext i1 @swift_dynamicCast(ptr [[T0]], ptr {{%.*}}, ptr [[T4]], ptr {{.*}}, [[INT]] 7)
  %1 = alloc_stack $S
  unconditional_checked_cast_addr P in %0 : $*P to S in %1 : $*S
  destroy_addr %1 : $*S
  dealloc_stack %1 : $*S
  %2 = tuple ()
  return %2 : $()
}

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @testUnconditional1(
sil @testUnconditional1 : $@convention(thin) (@in P) -> () {
bb0(%0 : $*P):
  // CHECK: [[T0:%.*]] = alloca [[S:%.*]], align
  // CHECK: [[T4:%.*]] = call {{.*}}@"$s12dynamic_cast1P_pMD"
  // CHECK: call zeroext i1 @swift_dynamicCast(ptr [[T0]], ptr {{%.*}}, ptr [[T4]], ptr {{.*}}, [[INT]] 7)
  %1 = alloc_stack $S
  unconditional_checked_cast_addr P in %0 : $*P to S in %1 : $*S
  destroy_addr %1 : $*S
  dealloc_stack %1 : $*S
  %2 = tuple ()
  return %2 : $()
}

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @testConditional0(
sil @testConditional0 : $@convention(thin) (@in P) -> () {
bb0(%0 : $*P):
  // CHECK: [[T0:%.*]] = alloca [[S:%.*]], align
  // CHECK: [[T4:%.*]] = call {{.*}}@"$s12dynamic_cast1P_pMD"
  // CHECK: [[T5:%.*]] = call zeroext i1 @swift_dynamicCast(ptr [[T0]], ptr {{%.*}}, ptr [[T4]], ptr {{.*}}, [[INT]] 6)
  // CHECK: br i1 [[T5]],
  %1 = alloc_stack $S
  checked_cast_addr_br take_always P in %0 : $*P to S in %1 : $*S, bb1, bb2
bb1:
  br bb3
bb2:
  br bb3
bb3:
  destroy_addr %1 : $*S
  dealloc_stack %1 : $*S
  %2 = tuple ()
  return %2 : $()
}

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @testConditional1(
sil @testConditional1 : $@convention(thin) (@in P) -> () {
bb0(%0 : $*P):
  // CHECK: [[T0:%.*]] = alloca [[S:%.*]], align
  // CHECK: [[T4:%.*]] = call {{.*}}@"$s12dynamic_cast1P_pMD"
  // CHECK: [[T5:%.*]] = call zeroext i1 @swift_dynamicCast(ptr [[T0]], ptr {{%.*}}, ptr [[T4]], ptr {{.*}}, [[INT]] 2)
  // CHECK: br i1 [[T5]],
  %1 = alloc_stack $S
  checked_cast_addr_br take_on_success P in %0 : $*P to S in %1 : $*S, bb1, bb2
bb1:
  br bb3
bb2:
  br bb3
bb3:
  destroy_addr %1 : $*S
  dealloc_stack %1 : $*S
  %2 = tuple ()
  return %2 : $()
}

// CHECK-LABEL: define{{( dllexport)?}}{{( protected)?}} swiftcc void @testConditional2(
sil @testConditional2 : $@convention(thin) (@in P) -> () {
bb0(%0 : $*P):
  // CHECK: [[T0:%.*]] = alloca [[S:%.*]], align
  // CHECK: [[T4:%.*]] = call {{.*}}@"$s12dynamic_cast1P_pMD"
  // CHECK: [[T5:%.*]] = call zeroext i1 @swift_dynamicCast(ptr [[T0]], ptr {{%.*}}, ptr [[T4]], ptr {{.*}}, [[INT]] 0)
  // CHECK: br i1 [[T5]],
  %1 = alloc_stack $S
  checked_cast_addr_br copy_on_success P in %0 : $*P to S in %1 : $*S, bb1, bb2
bb1:
  br bb3
bb2:
  br bb3
bb3:
  destroy_addr %1 : $*S
  dealloc_stack %1 : $*S
  %2 = tuple ()
  return %2 : $()
}